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Finding the Fourth Proportional to 14,501.70, 21,740.00 and 8,646.01

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Solution

The fourth proportional to 14,501.70, 21,740.00 and 8,646.01 is: 12,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.70 : 21,740.00 = 8,646.01 : x
  2. Step 2: Convert to fraction form
    14,501.70/21,740.00 = 8,646.01/x
  3. Step 3: Cross multiply
    14,501.70x = 21,740.00 × 8,646.01
  4. Step 4: Simplify right side
    14,501.70x = 187,964,159.82
  5. Step 5: Solve for x
    x = 187,964,159.82/14,501.70
  6. Step 6: Final answer
    x = 12,961.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.